Device to produce super pure water by reverse osmosis

FIELD: process engineering.

SUBSTANCE: invention relates to production of super pure water by reverse osmosis process. Proposed device comprises reverse osmosis filter module (6) divided by membrane (8) into primary chamber (7) and secondary chamber (9) and supply tank (3) with atmospheric vent including water feed pipe (1). Pipe (5) with built-in pump (4) extends from bottom end of supply tank (3) to primary chamber (7). Return concentrate pipe (14) extends from primary chamber (7) to supply pipe (3) while permeate pipe (28) extends from secondary chamber (9). Venturi pump (20) with converging chamber (21) and diverging chamber (22) is built in return pipe (14) and includes suction hose (18) to be selectively connected by plug joint (17, 26) with tank (27) containing disinfectant or with return concentrate pipe (14) upstream of Venturi pump 20. Plug joint (17, 26) comprises two plug-in connectors. The latter when disconnected make fixed part automatically close while connection or disconnection of suction hose (18) is registered and used as a control signal for reverse osmosis.

EFFECT: disinfection process can be notably automated.

11 cl, 4 dwg

 

The invention relates to a device for producing ultrapure water according to the principle of reverse osmosis, comprising: a filtering module of reverse osmosis, the membrane is divided into a primary chamber and the secondary chamber, with the supply tank with atmospheric ventilation, which includes a supply line of raw water from the lower end of the supply tank to the primary chamber is a pipe, in which is embedded the pump, and from the primary chamber back to the supply tank return pipe leads concentrate, and from the secondary chamber enters the pipeline permeate, which can be connected to a dialysis machine.

Reverse osmosis systems of this type are used for obtaining pure sterile water from tap water, for example, for use in medicine and food industry. The principle of their operation is that the treated water is passed into a filter module high pressure along the surface of a semi-permeable membrane, and part of the water, the permeate passes through the membrane and on the other side of the membrane is collected and brought to the place of consumption, for example to one or more dialysis machines. Not passed through the membrane, enriched detainees substances part of the raw water, the concentrate flows to the end of the section of flow of the primary chamber of the filter is of odule. In order for the water flow reverse osmosis to maintain, if possible, a small portion of the concentrate for the most part is fed back to the supply tank.

The pipeline system, especially with the return to the supply tank concentrate, not free from organic impurities. Therefore, without special countermeasures is colonization by microorganisms of this liquid system, i.e. the supply tank and leading to the filtering module, and from there back to the supply tank piping. On the inner surfaces of the guides fluid systems would be formed by the so-called biofilm.

To prevent this, it is necessary through suitable intervals disinfect these parts liquid system reverse osmosis. This normal operation is terminated and to guide the fluid system is supplied as a disinfectant. After a suitable exposure time is the process of washing, which is used again to remove the disinfectant and its reaction products, so that then could start the normal water.

Because of the significant hazards that would be associated with uncontrolled supply of disinfectant, especially in the field of medicine (Hepatology), all necessary d is I the disinfection process steps are still done manually under full control of the maintenance staff. This includes, among other things, the connection and the later separation of the connecting pipes with an external reservoir for the disinfectant and control of the correct supply of disinfectant.

From EP 1862213 A1 is known a device for disinfection, reverse osmosis, in which the pump delivers a chemical disinfectant that is withdrawn through the suction pipe from the supply tank with atmospheric ventilation in the piping system. In the known device in the suction tube integrated camera suction, which has an upper connection of the pump, the lower connection to the supply tank and connected with the upper part of the vent pipe, provided with a shut-off body that when applying the disinfectant is closed, and the other operating conditions of the reverse osmosis plant is opened. In the known solution does not solve the problem of automation of conducting the operation of the device.

The present invention is to achieve a significant degree of automation disinfection considered view.

This task is solved according to the invention through the characteristics of claim 1 of the claims.

Preferred embodiments of the invention are specified in dependent clauses form the s inventions.

The object of the invention is a device for producing ultrapure water according to the principle of reverse osmosis, containing the filtering module of reverse osmosis, which is divided by a membrane in the primary chamber and the secondary chamber and the supply tank with atmospheric ventilation, which includes water supply line. From the lower end of the supply tank to the primary camera is the pipeline, which is integrated pump. From the primary chamber back to the supply tank return pipe leads concentrate, and from the secondary chamber enters the pipeline permeate, which can be connected to a dialysis machine.

The above problem is solved due to the fact that in the return pipe concentrate integrated pump Venturi with tapering chamber and extending camera, which includes suction hose, selectively connectable via a plug connection containing a disinfectant and/or cleaning agent reservoir or reverse concentrate pipeline upstream from the Venturi pump, and preferably, the hydraulic resistance, when the plug-in connection includes two inserted into each other fasteners, when the separation which the stationary component connection is automatically closed, preferably at the expense of elasticity, and join or usedin is of the suction hose is logged and used as a control signal for reverse osmosis.

In a preferred embodiment of the invention on the tank and in the return pipe of the concentrate can be placed on one stationary connection components, and at the end of the suction hose, the corresponding response fitting. Preferably, the stationary connection components had one reed, and the response of the fitting was a ring magnet, so that when detaching and attaching the suction hose formed so that the switch on the switch performs the switching process, which is used as a control signal for reverse osmosis. However can be used and other means of registration attach and detach the suction hose suitable from the point of view of a specialist.

During normal operation of reverse osmosis suction hose connected to the return line of the concentrate, while the two connecting parts are inserted into each other and switch on the reed switch is closed. Part concentrate because located upstream from the branch hydraulic resistance flows through the suction hose, so that it is always flushed.

When should be taken disinfection, plug-in connection in the return pipe concentrate since distesa, that entails the process of switching a switch on the reed switch. This process of switching from a big advantage is used as a control signal to automatically interrupt the normal operation. When the connecting element on the end of the flexible suction hose is inserted into the connecting element on the external tank, it may be - if here is the appropriate switch on the switch - registered process toggle switch on the switch, then preferably automatically starts the disinfection process. Thus, for example, within a certain period of time in the Venturi pump can passivates disinfectant, or this process occurs until, when located in the primary and/or secondary circuit of the analytical device will register a certain concentration of the disinfectant to be cleaned fluid. It is also possible volumetric dosing, which is controlled by the level switch in the supply tank. Then, after a suitable exposure time, after repeated switching of the suction hose, preferably, an automatic washing process through which removed again made a disinfectant and its reaction products, so h is about then again can resume the normal water.

Using the present invention it has become possible largely automated disinfection. Technical results achieved by the implementation of the invention are to increase the level of safe operation and due to the automation, reducing labor costs in the operation of the device.

The supply tank with atmospheric ventilation are particularly susceptible to colonization by microorganisms. This supply tank, usually through its cover - includes both the raw water pipeline and the return pipe concentrate and mostly also the return pipe of the permeate, which partially fill the supply tank. Level, usually registered by the device for determining the fill level.

In order to eliminate the population of the inner wall of the supply tank by the biofilm or already otorowski microorganisms, according to another aspect of the present invention, which is independent of the input method of the disinfectant in the return pipe of the concentrate, it is proposed that on or log under the log included in the supply tank piping is located switchgear or deflecting device for liquid jets that direct incoming in the supply tank liquid on the principles of the indoor wall of the supply tank, so that the liquid flows down along the inner wall of the supply tank. Due to this reliably prevents organic deposits on the inner wall of the supply tank, and the surface of the supply tank is completely washed out.

In the case of the switchgear or deflecting device in question may be a conical, passing down toward the outside of the distribution screen, the appropriate size or, for example, spray nozzles which direct jets of liquid on the inner wall of the supply tank.

Can also be provided that before entering the inlet pipe water return pipe concentrate and return pipe of the permeate in the supply tank is located in one of the above distribution devices or, preferably, a General conical distribution screen.

According to another independent aspect of the present invention, the Venturi pump can be assembled from at least two blocks with flow channels that are tightly connected, preferably intermediate the inclusion of the o-ring. Preferably, the blocks are made up of solid plastic. This modular design of the pump Venturi makes possible the economical production of pumps Venturi different times in the development and forms by assembling prefabricated elements according to a modular principle.

According to a further suggestion of the invention such a Venturi pump mounted on the cover of the supply tank.

The invention will be described in more detail below with reference to the accompanying drawings. When this is shown:

Figure 1 - diagram of the reverse osmosis system according to the invention;

Figure 2 - area of the Venturi pump of figure 1 on an enlarged image;

Figure 3 is a fragment of the log return pipe concentrate in the supply tank is attached to the lid by a Venturi pump with a large distribution screen

Figure 4 is a similar image with a small distribution screen.

First, reference is made to figure 1. Through the pipe 1 is fed raw (untreated) water, through which the intake valve 2 hits in the supply tank 3. The liquid in the supply tank 3 by means of pump 4 passes through the pipe 5 of the filter module 6 reverse osmosis, primary camera 7 which is separated from the secondary chamber 9 by a membrane 8.

While the liquid flows first into the annular chamber in the upper end region of the pipe module and then flows down along the inner wall down, so that the filter module is free of dead space and it cannot be delayed any biofilm.

From the primary chamber 7, the concentrate is discharged through trubor the water 10, in which the throttle 11 provides prevailing in the primary pressure chamber 7. The concentrate can either through a pipeline 12, which is embedded in the valve 13, is disposed in the drain 14a, or through the return pipe 14 of the concentrate back to the feed tank 3. The reactor 11 can be dispensed through the bypass pipe 15 with the valve 16 in order, firstly, to increase the flow through the pipe 14 when the suction of the disinfectant, and secondly, in order to remove residues on the primary side to the drain 14a.

In the return pipe 14 concentrate is the connection 17, which may be collected from the stationary coupling element, which is rigidly connected with the pipe 14 and the counter-coupling element, which is fixed on the end of a flexible suction hose 18. In the flexible suction hose 18 is integrated non-return valve 19. Suction hose 18 is fixed on the suction hole of the pump 20 of the Venturi narrowing the camera 21 and the expanding chamber 22 which is embedded in the pipe 14. Between the pump Venturi 20 and 23 branches located hydraulic resistance 24, with the result that when closed the connection 17 during normal operation of the reverse osmosis portion of the concentrate through the suction hose 18 flows to the pump Venturi 20.

Still attached to the pipe 14 connects the AUX element is equipped with a reed switch, while attached to the end of the suction hose 18 return connection piece bears a ring magnet. Both parts together form a reed switch 25, the switch position which has the function of monitoring and control for reverse osmosis. When the connection 17 is open, that is, the suction hose 18 is removed, normal operation of the reverse osmosis system is automatically interrupted.

Response coupling element on the end of the suction hose 18 can dock with the corresponding connecting element 26 on the external tank 27, which contains a disinfectant or detergent. Also here the corresponding reed switch can issue points to the circuit connection control signal. Due to this, you may be running an automatic program disinfection.

From the secondary chamber 9 of the filter module 6 reverse osmosis permeate the circular pipe 28 flows to the site 29 selection of the dialysis apparatus. Not required permeate flows through the return pipe permeate back into the supply tank 3.

In front of the entrance holes of the pipeline 1 feed water return pipe 30 of the permeate and the return pipe 14 concentrate is conical distribution screen 31, which are supplied Jew the spine, which distribution screen 31 are directed at the inner wall of the supply tank 3. Thereby, the liquid constantly flows down the inner wall of the supply tank, so that there may be no biofilm. In addition, for each disinfection process incoming liquid disinfectant is supplied to the inner wall. In the subsequent washing program the disinfectant is removed without residue from the inner surface of the supply tank.

Figure 3 shows that the pump 32 Venturi can be assembled from two blocks 33 and 34, and another unit 35 forms an inlet for inflow of concentrate through the lid 36 of the supply tank 37. Blocks 33-35 consist, preferably, of hard rubber or plastic. Tapering chamber 38 is connected with an expansion chamber 39, and in the Central area of the suction part of the suction channel 40. Blocks 33-35 attached to each other by appropriate means with the intermediate arrangement of the sealing rings 41 of circular cross section. Under the cover 36 is fixed a conical deflecting/distributing screen 42, which directs the incoming fluid on the inner wall of the supply tank 37.

Shown in the figure 4 embodiment, input return pipe concentrate, as an example, all coming in the supply tank geostatistician for the same purpose a small deflecting screen 43.

1. Device for producing ultrapure water according to the principle of reverse osmosis, containing the filtering module (6) reverse osmosis, which is divided by a membrane (8) on primary chamber (7) and the secondary chamber (9), and the supply tank (3) with atmospheric ventilation, which includes a supply line (1), with water from the lower end of the supply tank (3) to the primary chamber (7) is the pipeline (5), which is integrated pump (4)from the primary chamber (7) back to the supply tank (3) leads the return pipe (14) of the concentrate and of the secondary chamber (9) leaves the duct (28) of the permeate, which can be connected to a dialysis machine, characterized in that the return pipe (14) concentrate integrated pump (20) Venturi with tapering chamber (21) and the expanding chamber (22), which includes suction hose (18), selectively connected by means of plug connections (17, 26) containing a disinfectant and/or cleaning agent reservoir (27) or with a return pipe (14) concentrate upstream from the pump (20) Venturi, with plug-in connection (17, 26) contains two inserted into each other fasteners, when the separation which the stationary component connection is automatically closed, and attach or detach the suction hose (18) registered and used in quality control is engaged signal for reverse osmosis.

2. The device according to claim 1, characterized in that in the supply tank (3) is the return pipe (30) of the permeate.

3. The device according to claim 1, characterized in that upstream from the pump (20) Venturi in the return pipe (14) concentrate integrated hydraulic resistance(24).

4. The device according to claim 1, characterized in that the reservoir (27) and in the return pipe (14) of the concentrate is one stationary connection components, and at the end of the suction hose (18) is the corresponding response of the connecting part.

5. The device according to claim 4, characterized in that the fixed connection pieces are one reed, and the response of the fitting is a ring magnet.

6. Device according to one of claims 1, 4 and 5, characterized in that the suction hose (18) integral check valve (19).

7. The device according to claim 1, characterized in that the input or the input return pipe (14) concentrate in the supply tank (3, 37) is a distribution device (31, 42, 43) or deflecting device for a liquid jet that directs the incoming fluid on the inner wall of the supply tank (3, 37).

8. The device according to claim 7, wherein the distribution device is a nozzle device and/or cylindrical distribution screen.

9. The mouth of austo according to claim 1, characterized in that the input of the pipeline (1) to supply water return pipe (14) of the concentrate and the return pipe (30) of the permeate to the feed tank (3, 37) is a distribution device, or a conical distribution screen.

10. The device according to claim 1, characterized in that the Venturi pump is assembled of at least two blocks (33, 34) with flow channels (38, 39, 40), which are tightly connected to each other.

11. The device according to claim 10, characterized in that the Venturi pump mounted on the cover (36) of the supply tank (37).



 

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22 cl, 2 dwg

FIELD: machine engineering.

SUBSTANCE: device including at least two supply chambers provided with a separating piston and at least two dynamic valves adjusting the incoming water flows and at least two dynamic valves regulating the outgoing water flows, differing in that the supply chambers are made inside one pressure housing and separated by the separating piston; the separating piston is movable along the axis connecting the supply chambers: the dynamic valves adjusting the incoming flows are made in the form of a fixed wheel with a side opening and a rotary wheel, which portion of the side surface is made in form of guide partitions; the dynamic valves adjusting the outcoming water flows are made in form of two discs with through holes, one of which is fixed, and the other one is rotatable and rigidly connected to the rotary wheel of the corresponding dynamic valve adjusting the incoming flow, and configured to rotate together with it. The hole in the rotary wheel and the corresponding rotating disc is rigidly fixed thereto. The through holes of the rotary wheels and the rotating discs rigidly connected to them, each of dynamic valve is offset with respect to the through holes in the fixed discs.

EFFECT: reduced electric power consumption, simplified device design, improved reliability during operation and reduced capital costs of fabrication.

12 cl, 9 dwg

FIELD: machine engineering.

SUBSTANCE: water purification plant contains a programmable control unit 27, filters of coarse 1 and fine 2 mechanical purification, the first 3 and the second 4 reverse-osmosis membrane filters, a pump 5 for pumping water, an input 9 and an output 33 solenoid valves, an electronic pressure sensor 8; mounted in the pipeline on stream water meters 10, 11, 12 from the first to the third, the first 13 and the second 14 monitoring nodes of concentration of impurities in the water, the first 15 and the second 16 sensors of "dry running", a pressure relay 17 of purified water, a return valve 18, shut-off valves 19, 20, 21, 22 from the first to the fourth, pressure gauges 23, 24, 25, 26 from the first to the fourth, a UV radiation chamber 7.

EFFECT: invention allows to obtain the purified water of the required quality at the outlet of the plant, depending on its further use.

2 cl, 3 dwg

FIELD: devices for purification of household and industrial sewage.

SUBSTANCE: the invention is dealt with devices for purification of household and industrial sewage and intended for electrical and cavitational treatment of sewage containing a large quantity of organic compounds. The device for purification of sewage consists of a body made out of a dielectric material partitioned by diaphragms for two electrode chambers and one working chamber, that contains a filtering material. The electrode chambers have cavitational field sources installed and the working chamber is supplied with a the bubbler installed in it. The technical result consists in an increase of recuperation of the filtering material at the expense of application of a cavitational field to it, decrease of the microbiological semination, and an increase of cavitational effect on particles.

EFFECT: the invention ensures an increase of the filtering material recuperation, decreased microbiological semination and increased the cavitational effect on particles.

1 dwg

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